Motorcycle fuel tank



FIG. 1 is a top, front, and left side perspective view of a motorcycle fuel tank embodying our new design;

FIG. 2 is a top, rear, right perspective view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the motorcycle fuel tank that form no part of the claimed design. 

CLAIM The ornamental design for a motorcycle fuel tank, as shown and described. 